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Tv set goes on standby when i switch it on and makes a dull sound that does not stop as if it is trying to swicth on.

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All TV's do that, you just have sensitive hearing

Posted on Mar 15, 2011

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When iam turning on its suddenly go to standby in seconds i have checked with service center their is no problem in it how to check the speakers circut or any wire short circut how to solove this


Please disconnect the speakers and try to swicth ON,If it switches ON without going to standby then one of your speakers is faulty.
After disconnecting the speakers and the set stil goes to standby it means one onre of the protection circuits in your system has been activated,check your fan if its rotating,the output ics if are not burnt or shorted.Also check your power supply section.thanks.

May 12, 2016 | Marantz SR 6007 AV Network Receiver

1 Answer

TV goes to blank screen standby after one second of normal functioning green power light on. When in standby state, the TV is blank like it's off and the red standby light blinks FOUR times.


These blinks [flashes] are fault indication (Error Codes). From the number of blinks occur at one time switch ON, you can get an idea about the faulty circuit section inside it. This will make repair easy. These are called blinking codes. Make sure about the exact number of blinking of the standby/power LED, by switching On & OFF the set, for at least two times. Count it carefully. If you wish to get some details, check the site linked here. It has details about blinking codes, and fault locating procedure, to many popular brand TVs and other devices. http://electronicshelponline.blogspot.com/

Oct 16, 2015 | Sony Bravia KDL-46V4100 46 in. LCD HDTV

1 Answer

Standby light blinks 6 times stops a repeats blinking


What is the brand name to your TV? These blinks [flashes] are fault indication (Error Codes). From the number of blinks occur at one time switch ON, you can get an idea about the faulty circuit section inside it. This will make repair easy. These are called blinking codes. Make sure about the exact number of blinking of the standby/power LED, by switching On & OFF the set, for at least two times. Count it carefully. If you wish to get some details, check the site linked here. It has details about blinking codes, and fault locating procedure, to many popular brand TVs and other devices. http://electronicshelponline.blogspot.com/

Nov 26, 2014 | Televison & Video

1 Answer

WHEN SWITCHING ON MY PANA CRT TV IT MAKES A SOUND LIKE A SQUEEK 7 OR A TIMES AND GOES BACK TO STANDBY


There is short circuited component/s at its horizontal scan output stage circuit. Check the horizontal output transistor first. Check it for collector to emitter, or collector to base, leak. Replace it with the same numebr, and check. If it do not help you, check and replace the Line Output Transformer [LOT]. If you wish to get some details, check the site linked here. http://electronicshelponline.blogspot.com/ Pull up older posts.

Jan 01, 2014 | Panasonic Televison & Video

1 Answer

Ce32ld33 tv sanyo turns on stays on for couple hours then turns off and stays off until an hour or 2 then switches on .i try to switch it on after about 20 mins but the little blue standby light goes...


There is a high possibility that the components over a period of heating and cooling, tend to bring on a problem of dry soldering. So my advice is to check the set for some loose joints that have played on to give you these erratic shut downs or poor performance. The best way to check for loose connections is to tap lightly when the set is powered on, if there is change while tapping then it seems that there are DRY solder joints. Remove main plug, the covers - with caution of high voltage, check for dry joints, and use a good soldering iron to solder all suspected points. Sometimes the fault occurs when the set warms up; if so you can simulate the heat using a hair dryer on the suspected areas, try with the power supply, distribution, Processor controller, driver controllers on the A/V related sections. Also the use a FREEZE-IT spray can simulate the components to cool and show up the fault. It can also be related to WEAK ELECTROLYTIC capacitors as the value can reduce in time.

Oct 04, 2011 | Sanyo Televison & Video

1 Answer

When i switch on and then press for channel the standby light goes dull and tv does not come on. tried power down and trying again but no luck


There is probably a leaking diode or something that is overloading the power supply in the TV. I had recently fixed an HDTV in which the standby light was flashing on and off dimly but would not come on. I measured the standby voltage and it was only a little over 2V which should have been 5 volts. Then I checked to see if the standby circuit was switching ( they switch on and off at 100,000 times per second if operating). It would switch on then off the on then vice versa every fraction of a second and that indicates overloading. Sure enough i found a diode that was shorted almost completely. All semiconductor only let current to pass one way . These are diodes, transistors and chips. They are like electical one way valves and when they get messed up the leak untill current goes both ways and this causes a short which in turn overloads the system and cause shut down. You can try to learn how to test these device using a the diode feature in a digital multimeter.

Jun 26, 2010 | Goodmans GTVL32W27HDF 32 in. LCD TV

2 Answers

I have a sony projection tv and the red is coming out of line where it makes you see double like a red rainbow effect shadow. I tried the flash focus and the problem still persists any ideas on where to go...


When you first turn it on,Count the flashes on the standby/power button.

Continuous blink once a second, no pausing - No reply from the jungle IC301 (data bus is busy, shorted to ground,or held high), IK video path is defective.

Two blinks - B+ over current protection (OCP), unit goes to the standby mode then displays the 2 blink fault. Could be a short in the power supply of any of the circuits.

Three blinks - B+ over voltage protection (OVP), unit goes to the standby mode then displays the 3 blink fault. This isalso a problem in the power supply circuit, check T603 and R672.

Four blinks - No vertical Deflection (V STOP), Screen goes to a single horizontal line then the video signal muted.Check IC1509, Q1505

Five blinks - AKB circuit (automatic kine bias), the timer/standby indicator blinks for about 30 seconds then goes to the self-diagnosis function. Something is wrong with the video. Check video out, Q705, 732, 761 and other components on
the C board, also check Q218, 219, 220 on the A board. In addition, unit could be in IK blanking, try turning up screen slightly.

Six blinks - No Horizontal (H STOP), no raster, goes to the blinking self-diagnosis function immediately. Check C515 & 516 and the jungle IC, IC206.

Seven blinks - High voltage shutdown. The high voltage has exceeded 33k and the unit goes immediately into safety shutdown. Check power supply regulation and horizontal circuits
.
Eight blinks - Problem with the audio (AUDIO), unit goes to standby and blinks the self-diagnosis code. Check IC406 audio amp, PS401, and 402. On some projection models of Sony TV sets, this code means that T8005 (flyback
transformer), or the associative components in the high voltage circuits are defective on the D board.

Nine blinks - Replace D 6116 and D 6301 on the "G" board, do not resolder as this will fix the problem temporary. Or Panel Module Error or Thermal Error. If it is intermittent 9 blinks, meaning sometimes the TV comes on and other times
you get flashing, then change the switching regulator on the "G" board or check connections. Make sure the regulator is -12 or -13 (negitive).

Ten blinks - Check Q8014 and Q8013 for shorts, leakage, or bad solder connections on the " D" board. If the transistors
are bad, check R8051 and IC8005, also on the "D" board

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Jan 03, 2009 | Sony KP-53V80 53" Rear Projection...

1 Answer

Sound stops suddenly


Alright, so wait, explain that again, It stops working when your using it, or when it goes into standby?

It starts working again after what? When you come out of standby?

When going into standby, the system goes on low power may cut the power to your speakers.

Check your Power settings.

RIGHT CLICK on DESKTOP> Select properties, Go to screen saver Tab and click on the Power button, then check all the power options such as when it goes into standby, how long till it does and adjust them to your preferences, also make sure Hibernation is turned off as well, when it goes into Hubernation, it cuts almost everything.

Give this a try and let me know,
good luck

Dec 05, 2008 | Intel Computers & Internet

2 Answers

LG TV problem


Standby solutions

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May 10, 2007 | LG 30FZ1DC 30" TV

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